Carbon pack for manifolding typewriters



Jan. 22, 1946. A. PETIT CARBON PACK FOR MANIFOLDING TYPEWRITERS Filed Jan. 2, 1941 Patented Jan. 22, 1946 CARBON PACK FOR NIANIFQLDIN TYPEWRITERS Laurence A. Petit, Chicago, Ill.

Application January 2, 1941, Serial No. 272,747

1 Claim.

This invention relates to an improved carbon pack for use in typewriting machines and the like, and more particularly to a carbon pack for use in a manifolding machine of the type shown in my United States Letters Patent No. 2,236,155, where continuous work sheets or webs are interleaved with carbon paper for simultaneous writing upon all of the sheets below the first top sheet.

An object of this invention is to provide an improved and simple form of carbon pack wherein a plurality of folded sheets are secured together and are usable separately without necessitating removal of the pack from a typewriting machine. I

Still another object of this invention is .to provide another and simpler form of carbon pack similar to that shown in my aforesaid patent.

In accordance with the general features of my invention there is provided an economical improved carbon pack having a plurality of folded lengths of carbon paper fastened together on a backing in such amanner as to enable successive use of fresh carbon sheets without necessitating removal of the pack from the machine. Furthermore, the use of my improved form of pack only.

necessitates the raising of the work sheet above the pack in order to unfold and withdraw from the pack a fresh length of carbon paper; all without disturbing the pack holder on its supporting carriage.

Other objects and features of this invention will more fully appear from the following detailed description taken in connection with the accompanying drawing, illustrating an embodiment thereof and in which:

Figure 1 is a top view, partly in'section, of the carbon pack with upper layers broken away to show the plurality of carbon papers and the loop through which the attachment member is inserted for connecting the carbon pack to the shifting frame on the manifolding machine; and

Figure 2 is an end view of the structure in Figure 1 and shows the means by which the carbon paper is held or stapled .together, and the manner by which the carbon sheets fold over the holding end and attached to a rectangular carrying sheet of comparatively heavy paper 2, such as cardboard, or the like, by fastening devices, such as staples 3, or the like. This heavy paper 2 is folded at the other end to form a pocket or loop 4 and this end is held in place by a row of fastening devices 6, such as staples or the like. The pocket 4 is of a size and shape to receive the holding arm or attachment member 1 of the typewriter. The arm Tsupports the pack on the shifting frame of the typewriter or billing machine and is adapted to be securely fastened to the machine by pins 8.

I The carbon sheets I are disposed one upon another and have their free portions folded midway .7 their lengths over the loop 4, The folded portions are substantially of the same length as that of the heavy paper or card-board backing 2.

, After the pack has been applied to the supporting arm I and inserted between the plies of paper of the manifold machine, a free end of an outer carbon sheet is drawn from the bottom of the pack over the loop 4 as shown in Fig. 2, until it is in the dotted line position I0 when it is ready for use. When it is desired to withdraw a fresh sheet of carbon paper from the pack, it is unnecessary to remove either the pack or its holding arm 1 from the manifold machine. All the operator needs to do is to raise the plies or work sheets a sufficient distance above the corresponding carbon pack and to then reach under the work sheet and withdraw from the pack a fresh length of carbon paper for association with the work sheets for another typing or printing operation. When the carbon paper in a pack has all been used'up,

' the backing sheet 2 can be readily slid off of its holding arm I and a new carbon pack substituted therefor.

a I claim as my invention:

As an article of manufacture, a carbon paper pack for insertion between the plies of a form in a billingmachine and the like comprising a carrying sheet, means provided adjacent one end of said carrying sheet for detachably mounting said sheet in the machine, and a plurality of carbon sheets disposed one on top of the other and secured to the other extremity of the carrying sheet, each of said carbon sheets being folded substantially midway of its length with its free end extending over the mounting means.

' LAURENCE A. PETIT. 

